They have some sort of strange "SmoothScroll" contraption going on in tie-scripts.js That's what's causing your issues. edit: Ah, it's actually a minified ver

They have some sort of strange "SmoothScroll" contraption going on in tie-scripts.js That's what's causing your issues. edit: Ah, it's actually a minified version of https://github.com/galambalazs/smoothscroll https://github.com/galambalazs/smoothscroll